The lifetime of every artificial joint is generally limited. In addition to mechanical factors, infection is the biggest enemy of the endoprosthesis. It may become loose in its anchoring, and pain and limited mobility may develop. Surgery to replace the endoprosthesis with a new joint is then usually necessary.
Advances in medicine, the use of preventive measures, new materials and more sophisticated surgical techniques have been able to continually reduce the risk of infection-related loosening of the endoprosthesis in particular. As a result, the artificial joint can remain longer in the body.
Large studies have demonstrated that endoprostheses are particularly long-lived if they are anchored with bone cement. This means that any revision surgery (that is, replacement of the endoprosthesis) that may become necessary can be avoided, or at least deferred for a long time.